Heat and Mass Transfer The heat is transferred by conduction, convection and radiation in None of these Melting of ice Condensation of steam in condenser Boiler furnaces None of these Melting of ice Condensation of steam in condenser Boiler furnaces ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is expected to have highest thermal conductivity? Steam Water Solid ice Melting ice Steam Water Solid ice Melting ice ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body) k. A. (dT/dx) k. (dx/dT) k. A. (dx/dT) k. (dT/dx) k. A. (dT/dx) k. (dx/dT) k. A. (dx/dT) k. (dT/dx) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is valid for Regular surfaces having non-uniform temperature gradients Two dimensional cases only One dimensional cases only Three dimensional cases only Regular surfaces having non-uniform temperature gradients Two dimensional cases only One dimensional cases only Three dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer by radiation mainly depends upon Kind and extent of its surface Its temperature Nature of the body All of these Kind and extent of its surface Its temperature Nature of the body All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Upto the critical radius of insulation, Added insulation will decrease heat loss Heat flux will decrease Convective heat loss will be less than conductive heat loss Added insulation will increase heat loss Added insulation will decrease heat loss Heat flux will decrease Convective heat loss will be less than conductive heat loss Added insulation will increase heat loss ANSWER DOWNLOAD EXAMIANS APP
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